Adds enableVirtualTime and setVirtualTimePolicy To Emulation domain.

components/scheduler/renderer/web_view_scheduler_impl_unittest.cc

Index: components/scheduler/renderer/web_view_scheduler_impl_unittest.cc
diff --git a/components/scheduler/renderer/web_view_scheduler_impl_unittest.cc b/components/scheduler/renderer/web_view_scheduler_impl_unittest.cc
index 8ccc4dfc83c3f6cf88bdc0c7af2830582c23619f..c922fa451aa8821480c265d06f6b2909920b5fbb 100644
--- a/components/scheduler/renderer/web_view_scheduler_impl_unittest.cc
+++ b/components/scheduler/renderer/web_view_scheduler_impl_unittest.cc
@@ -20,6 +20,7 @@
 #include "third_party/WebKit/public/platform/WebTraceLocation.h"
 
 using testing::ElementsAre;
+using VirtualTimePolicy = blink::WebViewScheduler::VirtualTimePolicy;
 
 namespace scheduler {
 
@@ -335,7 +336,8 @@ class DelayedRunOrderTask : public blink::WebTaskRunner::Task {
 TEST_F(WebViewSchedulerImplTest, VirtualTime_NotAllowedToAdvance) {
   std::vector<int> run_order;
 
-  web_view_scheduler_->setAllowVirtualTimeToAdvance(false);
+  web_view_scheduler_->setVirtualTimePolicy(
+      blink::WebViewScheduler::VirtualTimePolicy::PAUSE);

[Sami, 2016/07/05 10:26:55]

nit: no need for the namespace prefix with the 'using' (below too).

[alex clarke (OOO till 29th), 2016/07/05 13:08:13]

Done.

   web_view_scheduler_->enableVirtualTime();
 
   web_frame_scheduler_->timerTaskRunner()->postTask(
@@ -362,7 +364,8 @@ TEST_F(WebViewSchedulerImplTest, VirtualTime_NotAllowedToAdvance) {
 TEST_F(WebViewSchedulerImplTest, VirtualTime_AllowedToAdvance) {
   std::vector<int> run_order;
 
-  web_view_scheduler_->setAllowVirtualTimeToAdvance(true);
+  web_view_scheduler_->setVirtualTimePolicy(
+      blink::WebViewScheduler::VirtualTimePolicy::ADVANCE);
   web_view_scheduler_->enableVirtualTime();
 
   web_frame_scheduler_->timerTaskRunner()->postTask(
@@ -411,7 +414,7 @@ TEST_F(WebViewSchedulerImplTestWithDisabledBackgroundTimerThrottling,
 TEST_F(WebViewSchedulerImplTest, VirtualTimeSettings_NewWebFrameScheduler) {
   std::vector<int> run_order;
 
-  web_view_scheduler_->setAllowVirtualTimeToAdvance(false);
+  web_view_scheduler_->setVirtualTimePolicy(VirtualTimePolicy::PAUSE);
   web_view_scheduler_->enableVirtualTime();
 
   std::unique_ptr<WebFrameSchedulerImpl> web_frame_scheduler =
@@ -423,7 +426,7 @@ TEST_F(WebViewSchedulerImplTest, VirtualTimeSettings_NewWebFrameScheduler) {
   mock_task_runner_->RunUntilIdle();
   EXPECT_TRUE(run_order.empty());
 
-  web_view_scheduler_->setAllowVirtualTimeToAdvance(true);
+  web_view_scheduler_->setVirtualTimePolicy(VirtualTimePolicy::ADVANCE);
   mock_task_runner_->RunUntilIdle();
 
   EXPECT_THAT(run_order, ElementsAre(1));
@@ -501,4 +504,29 @@ TEST_F(WebViewSchedulerImplTest, DeleteThrottledQueue_InTask) {
   EXPECT_EQ(10, run_count);
 }
 
+TEST_F(WebViewSchedulerImplTest,
+       VirtualTimePolicy_PAUSE_IF_NETWORK_FETCHES_PENDING) {
+  web_view_scheduler_->setVirtualTimePolicy(
+      VirtualTimePolicy::PAUSE_IF_NETWORK_FETCHES_PENDING);
+  EXPECT_TRUE(web_view_scheduler_->virtualTimeAllowedToAdvance());
+
+  web_view_scheduler_->incrementPendingResourceLoadCount();
+  EXPECT_FALSE(web_view_scheduler_->virtualTimeAllowedToAdvance());
+
+  web_view_scheduler_->incrementPendingResourceLoadCount();
+  EXPECT_FALSE(web_view_scheduler_->virtualTimeAllowedToAdvance());
+
+  web_view_scheduler_->decrementPendingResourceLoadCount();
+  EXPECT_FALSE(web_view_scheduler_->virtualTimeAllowedToAdvance());
+
+  web_view_scheduler_->incrementPendingResourceLoadCount();
+  EXPECT_FALSE(web_view_scheduler_->virtualTimeAllowedToAdvance());
+
+  web_view_scheduler_->decrementPendingResourceLoadCount();
+  EXPECT_FALSE(web_view_scheduler_->virtualTimeAllowedToAdvance());
+
+  web_view_scheduler_->decrementPendingResourceLoadCount();
+  EXPECT_TRUE(web_view_scheduler_->virtualTimeAllowedToAdvance());
+}
+
 }  // namespace scheduler